12317340 has 48 divisors (see below), whose sum is σ = 39416832. Its totient is φ = 2815296.

The previous prime is 12317329. The next prime is 12317341. The reversal of 12317340 is 4371321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14244 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (821184).

Almost surely, 2^12317340 is an apocalyptic number.

12317340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12317340 is an abundant number, since it is smaller than the sum of its proper divisors (27099492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12317340 is a wasteful number, since it uses less digits than its factorization.

12317340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29346 (or 29344 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 12317340 is about 3509.6068155849. The cubic root of 12317340 is about 230.9434467356.

Adding to 12317340 its reverse (4371321), we get a palindrome (16688661).

The spelling of 12317340 in words is "twelve million, three hundred seventeen thousand, three hundred forty".